/*
    This file is part of the substandard lisp implementation of Standard Lisp
    Copyright (C) 2011 Nicky Nickell

    substandard lisp is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

function std_explode(a, env) {
  var u = a[0];

  var str = u.prin1();
  var head = new lisp_pair(new lisp_id(str[0], env.oblist), NIL);
  var ptr = head;

  for (var i = 1; i < str.length; i++) {
    ptr.cdr = new lisp_pair(new lisp_id(str[i], env.oblist), NIL);
    ptr = ptr.cdr;
  }

  return head;
}

/*---
name: explode
arity: 1
rest: false
ftype: FTYPE_EXPR

argument-types:
  - CLASS_ATOM ^ TYPE_VECTOR

doc: |
  explaining what explode is / how it is used!

tests: |
  (explode 'foobar) -> (f o o b a r)
  (explode -123) -> (- 1 2 3)
  (explode "foo") -> (" f o o ")
...*/
